... Finger jointed 3)Surface: flat 1)Staircase accessory- Finger jointed beech wooden staircase treads/risers is produced by our professional workers ... , we also can supply you different wood species of stair treadsl in different thickness, normally the treads we produce are ... : Chinese teak, oak, maple, beech, ash, rubber wood, teak, balsamo, cumaru, cherry and so ...